[jira] [Created] (FLINK-19938) Implement shuffle data read scheduling for sort-merge blocking shuffle

[Shang Yuanchun (Jira)]

Yingjie Cao created FLINK-19938:
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             Summary: Implement shuffle data read scheduling for sort-merge blocking shuffle
                 Key: FLINK-19938
                 URL: https://issues.apache.org/jira/browse/FLINK-19938
             Project: Flink
          Issue Type: Sub-task
          Components: Runtime / Network
    Affects Versions: 1.12.0
            Reporter: Yingjie Cao
             Fix For: 1.12.0


As described in [https://cwiki.apache.org/confluence/display/FLINK/FLIP-148%3A+Introduce+Sort-Merge+Based+Blocking+Shuffle+to+Flink.] shuffle IO scheduling is important for performance. We'd like to Introduce it to sort-merge shuffle first.



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